Victor Jr EFI vs. Fast 90
11-01-2008, 12:16 PM
#161
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I think you're mostly correct. However, I believe that the wide LSAs that are rampent with the LS crowd have more to do with driveablility and emissions than performance. I think, with a decent exhaust, that the increased overlap from a tighter LSA would benefit both the victor and underplenum design equally. I guess I'm just reiterating that no cam swap is going to make the victor do something it wasn't designed to do (produce torque under 6500 rpm).
I agree that the crowd that post negative about the Victor Jr. not working are the ones that run the vendor or common style LSA because because of driveability or they can't get a tight LSA cam tuned.
My cam in my 370 is cut on a 108*2 degrees advance in it. I wanted the power to come in lower and hold as long as a wider style LSA cam but was not sure it would compete with the 112-114 on the high side of the power curve. I was wrong when i dynoed the setup last year it peaked at 6100 rpms and held within 2 hp all the way to 7K with no dips or dives ( smooth,flat power band) witch IMO is great for racing. I have too much torque down low with the LS6 intake for the street and for the track on a poorly prep track.
My theory for ME is for the Victor Jr. to move my torque up in the powerband for it to be more useable with my cam and converter and should pick up a good amount of HP on the topend.
From what i was told by several buddies is that the Victor Jr. and GMMP intakes were what the faster cars were running at the 2008 shootout at Memphis. With the right cam setup and a high flowing exhaust setup the single plane intakes should out shine the FAST intakes all day long and don't get me started on the FAST intakes because from what i have seen with my own eyes is a rip off
Not enough gain for the money without sinking even more money in port work! Last edited by StreetStalkerZ; 11-01-2008 at 12:31 PM.
11-01-2008, 08:07 PM
#162
I think you're mostly correct. However, I believe that the wide LSAs that are rampent with the LS crowd have more to do with driveablility and emissions than performance. I think, with a decent exhaust, that the increased overlap from a tighter LSA would benefit both the victor and underplenum design equally. I guess I'm just reiterating that no cam swap is going to make the victor do something it wasn't designed to do (produce torque under 6500 rpm).
When in doubt I usually call two or three of the major cam companies to get there take on things.
